Rekensommen met eraf tot 100

Erafsommen
1.
25
–
0
=
2.
10
–
0
=
3.
75
–
45
=
4.
70
–
25
=
5.
45
–
30
=
6.
65
–
20
=
7.
40
–
25
=
8.
20
–
5
=
9.
65
–
20
=
10.
95
–
0
=
11.
20
–
20
=
12.
85
–
60
=
13.
20
–
5
=
14.
70
–
20
=
15.
65
–
65
=
16.
95
–
35
=
17.
5
–
5
=
18.
30
–
20
=
19.
35
–
30
=
20.
70
–
10
=
21.
25
–
20
=
22.
25
–
15
=
23.
90
–
60
=
24.
5
–
5
=
25.
30
–
5
=
26.
70
–
50
=
27.
35
–
25
=
28.
80
–
75
=
29.
90
–
85
=
30.
45
–
25
=
31.
20
–
0
=
32.
85
–
5
=
33.
15
–
10
=
34.
95
–
75
=
35.
95
–
10
=
36.
90
–
35
=
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
25
–
0
=
25
2.
10
–
0
=
10
3.
75
–
45
=
30
4.
70
–
25
=
45
5.
45
–
30
=
15
6.
65
–
20
=
45
7.
40
–
25
=
15
8.
20
–
5
=
15
9.
65
–
20
=
45
10.
95
–
0
=
95
11.
20
–
20
=
0
12.
85
–
60
=
25
13.
20
–
5
=
15
14.
70
–
20
=
50
15.
65
–
65
=
0
16.
95
–
35
=
60
17.
5
–
5
=
0
18.
30
–
20
=
10
19.
35
–
30
=
5
20.
70
–
10
=
60
21.
25
–
20
=
5
22.
25
–
15
=
10
23.
90
–
60
=
30
24.
5
–
5
=
0
25.
30
–
5
=
25
26.
70
–
50
=
20
27.
35
–
25
=
10
28.
80
–
75
=
5
29.
90
–
85
=
5
30.
45
–
25
=
20
31.
20
–
0
=
20
32.
85
–
5
=
80
33.
15
–
10
=
5
34.
95
–
75
=
20
35.
95
–
10
=
85
36.
90
–
35
=
55
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen